Large area[s] of unmodified or slightly modified land, and/or sea, retaining its natural character and influence, without permanent or significant habitation, which is protected and managed so as to preserve its natural condition
Within some nation States including in the United States of America, Canada, New Zealand, and the Commonwealth of Australia, governments have opted to focus on rivers and river systems as a kind of "unmodified or slightly modified" landscape feature to protect, manage and preserve in near 'natural' condition - variously labeling or formally declaring such areas to be "Wild Rivers" (or "Heritage Rivers"). The term "Wild river" may also more generically describe or identify rivers which provide a Wilderness (IUCN Category 1b) type experience or have a Wilderness type quality (in particular, free flowing waters without dams) which may be considered worth protecting and keeping for future generations.